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BR0313819A - multi-input and multi-output (maximum) systems encoded with channel selective selectively applied - Google Patents

multi-input and multi-output (maximum) systems encoded with channel selective selectively applied

Info

Publication number
BR0313819A
BR0313819A BRPI0313819-4A BR0313819A BR0313819A BR 0313819 A BR0313819 A BR 0313819A BR 0313819 A BR0313819 A BR 0313819A BR 0313819 A BR0313819 A BR 0313819A
Authority
BR
Brazil
Prior art keywords
group
channel
mimo
channels
input
Prior art date
Application number
BRPI0313819-4A
Other languages
Portuguese (pt)
Inventor
Irina Medvedev
Jay Rod Walton
John W Ketchum
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR0313819A publication Critical patent/BR0313819A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041—Arrangements at the transmitter end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0067—Rate matching
    • H04L1/0068—Rate matching by puncturing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0426—Power distribution
    • H04B7/0434—Power distribution using multiple eigenmodes
    • H04B7/0439—Power distribution using multiple eigenmodes utilizing channel inversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)

Abstract

SISTEMAS DE MúLTIPLAS ENTRADAS E MúLTIPLAS SAìDAS (MIMO) CODIFICADOS COM INVERSãO SELETIVA DE CANAL APLICADA POR MODO PRóPRIO São apresentadas técnicas para efetuar inversão seletiva de canal por modo próprio em um sistema de múltiplas entradas e múltiplas saídas (MIMO) de modo a se obter uma alta eficiência espectral ao mesmo tempo reduzindo-se a complexidade tanto no transmissor quanto no receptor. Os canais de transmissão existentes são dispostos em um número de grupos, em que cada grupo pode incluir todos os canais de transmissão (ou binários de freqüência) para um respectivo modo próprio de um canal MIMO. A potência de transmissão total é alocada para os grupos utilizando-se um esquema de alocação de potência para grupos específico. A inversão seletiva de canal é em seguida efetuada de maneira independente para cada grupo selecionado para uso na transmissão de dados. Para cada tal grupo, um ou mais canais de transmissão no grupo são selecionados para uso, e um fator de graduação é determinado para cada canal selecionado, de modo que todos os canais selecionados para o grupo obtenham qualidade de sinal recebido (isto é, SNR recebida) semelhante.MULTIPLE INPUTS AND MULTIPLE OUTPUTS (MIMO) SYSTEMS WITH OWN SELECTED CHANNEL SELECTION Techniques for proper mode selective channel inversion in a multiple input and multiple output (MIMO) system are presented. high spectral efficiency while reducing complexity on both transmitter and receiver. Existing transmission channels are arranged in a number of groups, where each group can include all transmission channels (or frequency binaries) for their own mode of a MIMO channel. Total transmit power is allocated to groups using a specific group power allocation scheme. Channel selective inversion is then performed independently for each group selected for use in data transmission. For each such group, one or more broadcast channels in the group are selected for use, and a scaling factor is determined for each selected channel, so that all channels selected for the group achieve received signal quality (ie SNR). received) similar.

BRPI0313819-4A 2002-08-27 2003-08-19 multi-input and multi-output (maximum) systems encoded with channel selective selectively applied BR0313819A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/229,209 US8194770B2 (en) 2002-08-27 2002-08-27 Coded MIMO systems with selective channel inversion applied per eigenmode
PCT/US2003/026395 WO2004021634A1 (en) 2002-08-27 2003-08-19 Coded mimo systems with selective channel inversion applied per eigenmode

Publications (1)

Publication Number Publication Date
BR0313819A true BR0313819A (en) 2007-09-11

Family

ID=31976188

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0313819-4A BR0313819A (en) 2002-08-27 2003-08-19 multi-input and multi-output (maximum) systems encoded with channel selective selectively applied

Country Status (16)

Country Link
US (1) US8194770B2 (en)
EP (1) EP1532762B1 (en)
JP (1) JP4386836B2 (en)
KR (1) KR100983231B1 (en)
CN (1) CN100370721C (en)
AU (1) AU2003265601B2 (en)
BR (1) BR0313819A (en)
CA (1) CA2496619A1 (en)
DE (1) DE60310237T2 (en)
HK (1) HK1083283A1 (en)
IL (1) IL166579A0 (en)
MX (1) MXPA05002229A (en)
RU (1) RU2328074C2 (en)
TW (1) TWI324862B (en)
UA (1) UA84684C2 (en)
WO (1) WO2004021634A1 (en)

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AU2003265601B2 (en) 2008-12-18
EP1532762A1 (en) 2005-05-25
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AU2003265601A1 (en) 2004-03-19
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MXPA05002229A (en) 2005-07-05
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WO2004021634A1 (en) 2004-03-11
CN1679269A (en) 2005-10-05
EP1532762B1 (en) 2006-12-06
UA84684C2 (en) 2008-11-25
US20040042556A1 (en) 2004-03-04
JP4386836B2 (en) 2009-12-16
JP2005537750A (en) 2005-12-08
HK1083283A1 (en) 2006-06-30
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CN100370721C (en) 2008-02-20

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